Block adaptive subband coding with optimized AMBTC

K. W. Chan; K. L. Chan

doi:10.1109/TENCON.1994.369266

Block adaptive subband coding with optimized AMBTC

Department of Electrical Engineering

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

3 Citations (Scopus)

Abstract

A block adaptive SBC is combined with an adaptive AMBTC for near perfect reconstruction. The input images are decomposed into 4 subbands and are individually coded by AMBTC. The AMBTC will adapt to the signal variance and switch the output from 1 to 4 levels dynamically. Its performance is further optimized by Dynamic Range Tuning (DRT) and Central Aggregate Optimization (CAO). To avoid costly high precision coder, the lowest frequency band is further split into a coded subband and a residue one. All bands are coded by the same coder. Bit allocation is furnished by the dynamic adaptability of AMBTC, and a bit-reduction scheme derived from signal statistics of respective subbands. This 5-band coding system eliminates the blockiness and the jagged edge artifact completely. The simulation result also leads the closest one by a great margin.

Original language	English
Title of host publication	Proceedings of TENCON'94 - 1994 IEEE Region 10's 9th Annual International Conference on: 'Frontiers of Computer Technology'
Publisher	IEEE
Pages	422-426
Volume	1
ISBN (Print)	0-7803-1862-5
DOIs	https://doi.org/10.1109/TENCON.1994.369266
Publication status	Published - Aug 1994
Event	1994 IEEE Region 10's 9th Annual International Conference (TENCON'94) - , Singapore Duration: 22 Aug 1994 → 26 Aug 1994

Conference

Conference	1994 IEEE Region 10's 9th Annual International Conference (TENCON'94)
Place	Singapore
Period	22/08/94 → 26/08/94

Access Output

10.1109/TENCON.1994.369266

Other Access Options

Check CityUHK Library

Permanent Link

Right click to copy link

Cite this

@inproceedings{68efecb2a2fb4ea1aecef0d98894ce38,

title = "Block adaptive subband coding with optimized AMBTC",

abstract = "A block adaptive SBC is combined with an adaptive AMBTC for near perfect reconstruction. The input images are decomposed into 4 subbands and are individually coded by AMBTC. The AMBTC will adapt to the signal variance and switch the output from 1 to 4 levels dynamically. Its performance is further optimized by Dynamic Range Tuning (DRT) and Central Aggregate Optimization (CAO). To avoid costly high precision coder, the lowest frequency band is further split into a coded subband and a residue one. All bands are coded by the same coder. Bit allocation is furnished by the dynamic adaptability of AMBTC, and a bit-reduction scheme derived from signal statistics of respective subbands. This 5-band coding system eliminates the blockiness and the jagged edge artifact completely. The simulation result also leads the closest one by a great margin.",

author = "Chan, {K. W.} and Chan, {K. L.}",

year = "1994",

month = aug,

doi = "10.1109/TENCON.1994.369266",

language = "English",

isbn = "0-7803-1862-5",

volume = "1",

pages = "422--426",

booktitle = "Proceedings of TENCON'94 - 1994 IEEE Region 10's 9th Annual International Conference on: 'Frontiers of Computer Technology'",

publisher = "IEEE",

address = "United States",

note = "1994 IEEE Region 10's 9th Annual International Conference (TENCON'94) ; Conference date: 22-08-1994 Through 26-08-1994",

}

Block adaptive subband coding with optimized AMBTC. / Chan, K. W.; Chan, K. L.
Proceedings of TENCON'94 - 1994 IEEE Region 10's 9th Annual International Conference on: 'Frontiers of Computer Technology'. Vol. 1 IEEE, 1994. p. 422-426.

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

TY - GEN

T1 - Block adaptive subband coding with optimized AMBTC

AU - Chan, K. W.

AU - Chan, K. L.

PY - 1994/8

Y1 - 1994/8

N2 - A block adaptive SBC is combined with an adaptive AMBTC for near perfect reconstruction. The input images are decomposed into 4 subbands and are individually coded by AMBTC. The AMBTC will adapt to the signal variance and switch the output from 1 to 4 levels dynamically. Its performance is further optimized by Dynamic Range Tuning (DRT) and Central Aggregate Optimization (CAO). To avoid costly high precision coder, the lowest frequency band is further split into a coded subband and a residue one. All bands are coded by the same coder. Bit allocation is furnished by the dynamic adaptability of AMBTC, and a bit-reduction scheme derived from signal statistics of respective subbands. This 5-band coding system eliminates the blockiness and the jagged edge artifact completely. The simulation result also leads the closest one by a great margin.

AB - A block adaptive SBC is combined with an adaptive AMBTC for near perfect reconstruction. The input images are decomposed into 4 subbands and are individually coded by AMBTC. The AMBTC will adapt to the signal variance and switch the output from 1 to 4 levels dynamically. Its performance is further optimized by Dynamic Range Tuning (DRT) and Central Aggregate Optimization (CAO). To avoid costly high precision coder, the lowest frequency band is further split into a coded subband and a residue one. All bands are coded by the same coder. Bit allocation is furnished by the dynamic adaptability of AMBTC, and a bit-reduction scheme derived from signal statistics of respective subbands. This 5-band coding system eliminates the blockiness and the jagged edge artifact completely. The simulation result also leads the closest one by a great margin.

UR - http://www.scopus.com/inward/record.url?scp=0029208670&partnerID=8YFLogxK

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-0029208670&origin=recordpage

U2 - 10.1109/TENCON.1994.369266

DO - 10.1109/TENCON.1994.369266

M3 - RGC 32 - Refereed conference paper (with host publication)

SN - 0-7803-1862-5

VL - 1

SP - 422

EP - 426

BT - Proceedings of TENCON'94 - 1994 IEEE Region 10's 9th Annual International Conference on: 'Frontiers of Computer Technology'

PB - IEEE

T2 - 1994 IEEE Region 10's 9th Annual International Conference (TENCON'94)

Y2 - 22 August 1994 through 26 August 1994

ER -

Block adaptive subband coding with optimized AMBTC

Abstract

Conference

Access Output

Other Access Options

Permanent Link

Other Files and Links

Fingerprint

Cite this